rockets4kids
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Posts posted by rockets4kids
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Are you looking to learn how to build this yourself, or are you looking for someone to build it for you?
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All of the G2 parts with a UART have a bootloader in ROM.
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I believe mspgcc supports the interrupt format used by msp430-gcc, so that shouldn't be a problem.
Historically mspgcc used only the gcc-style interrupt declaration format and only added the IAR/CL430 format late in its development run. It is because msp430-gcc tries to say closer to pure gcc that it only supports the gcc format.
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Amateur high altitude balloon projects have actually become quite casual in the past year or two.
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I have seen plenty of people using Arduinos and Raspberry Pis as flight computers for these applications, so clearly power consumption isn't *that* great of a concern. ;-)
I agree that an MSP430 part would likely have lower power consumption than a Hercules part, but I would be willing to bet that a Hercules part -- when used/coded properly -- would consume *considerably* less power than what most people are actually using.
I mention this application because I have seen a fair number of discussions on flight computer failures. Now personally, I suspect the primary cause to be related to vibration on spring-loaded connectors. I've seen some pretty janky wiring jobs. But cosmic radiation levels are much greater at high altitudes so this is a real possibility. (BTW, janky *is* a real word now. http://time.com/3724601/oxford-dictionary-janky-egot-ridesharing/)
I am aware that FRAM has some level of immunity to the effects of cosmic rays, but as I understand it the SRAM and the core logic could certainly be effected. As such, the effects of a cosmic-ray induced bit flip could easily go unnoticed causing a series of cascading failures before the watchdog is triggered. But then you still are left with all the mess between the cosmic ray event and the watchdog trigger. (There is also no guarantee that a failure will result in triggering of the watchdog.)
As best as I can tell, the lock-step operation of the Hercules parts would provide much quicker notification of an event, and thus much quicker restart with less chance of data loss or corruption. This is certainly no substitute for a fully rad-hard system, but it seems as if it gets you a long way in that direction for a fraction of the price.
In any case, it seems as if this could be a prime hobbyist application for the part. I am *very* curious to know if anyone who knows more about the architecture of the Hercules can actually provide some more detail here.
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Perhaps a better way to discuss this would be, "For what hobbyist applications would the Hercules part be well suited?"
The first thing that comes to my mind would be high-altitude balloon projects or cubesats that would be subject to cosmic rays.
Does anyone know if the Hercules architecture will really provide a benefit here?
- abecedarian and spirilis
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Before migrating to TIs gcc compiler you will really want to investigate its actual condition and level of support. For instance, can you even find any proper documentation on the new compiler?
The older toolchain, though obsolete, is more reliable and much better suited for most projects.
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The simple solution is to always place the constant on the left hand side. This will always force an error if you use = instead of ==
- simalrow, abecedarian and RROMANO001
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Have you gotten "hello world" to compile under the new toolchain? If not, that is where you want to start.
Most of your size issues are likely coming from newlib, not the compiler directly.
That said, I still have reservations about the new compiler so unless you need support for large memory or C++11 I suggest you stick with 4.6.3.
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What core is the current msp432 part using?
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My understanding is that most of the issues were fixed in the LM4 parts, and most if not all of the LM4 parts still exist and were simply renamed as TM4.
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Just stumbled across this and though some people might be interested:
http://rohitg.in/2015/05/17/FM430/
These FM receiver modules go for about $1 on eBay.
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The word from someone inside of TI is that the name was changed from Stellaris to Tiva because Asians had too much trouble pronouncing "Stellaris."
I still don't know is this is serious or a joke.
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Correction: Your idea is worthless until you patent it. Then you can let someone else do the work and profit anyway.
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Personally, I would ask the following questions:
1. Is there a fully open source, cross-platform toolchain available?
2. Does the part have community support and acceptance?
3. Is the part well stocked by distributers?
4. Does the manufacturer have a history of long-term product support?
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I wish they would just put these videos up on youtube to begin with.
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8051 (and derivatives) will not die as long as a) there are applications for it 2) it is cheap iii) there are legacy applications where there is no reason to replace it/recode -..) manufacturers keep upgrading the peripherals to meet new needs
I'm not sure it has to do with any of that. You don't see the 8051 as a stand-alone part any more, you see it embedded into other chips. In that realm, the 8051 has become the de-facto architecture and it will likely stay that way for some time to come. I do suspect that at some point that ARM will supplant the 8051, and the only real question is when that will happen.
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Gotta love 8051 instructions running in a single clock cycle at 100 MHz!
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Are you checking for an oscillator fault condition in software?
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If you have the code space available, just write your own firmware update code which uses the hardware UART. This is the preferred option anyway.
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just google "how to drive a relay with a microcontroller"
you will find dozens if not hundreds of pages which explain how to do this.
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It seems these parts have been in the pipeline for quite some time now:
$ whois msp432.com
Domain Name: MSP432.COMRegistrar: GKG.NET, INC.Sponsoring Registrar IANA ID: 93Whois Server: whois.gkg.netReferral URL: http://www.gkg.netName Server: NS.TI.COMName Server: NS2.TI.COMName Server: NS3.TI.COMName Server: NS4.TI.COMStatus: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibitedUpdated Date: 04-dec-2013Creation Date: 13-jan-2011 <<<<<<<<---------------------------------------------Expiration Date: 13-jan-2019 -
Need help with MSP430 Project...
in General
Posted
I you want someone to build a project for you, then you should start by stating that clearly in the title. However, I highly doubt that unless you have a fair bit of money to offer you are not likely to find anyone interested.
If you want to start learning on your own, I suggest you start by learning how to blink an LED.